1.high speed ptz, SONY "Exmor" CMOS 2.2 megapixels 1080p resolution 3. ... megapixel/20frameAudio CompressionG.711Two-Way IntercomYesAudio I/OYes, optionalNetwork ProtocolsTCP/IP, HTTP, ARP, RARP, ICMP, DHCP, DNS, DDNS, PPPOE, FTP, SMTP ... (without bracket)ApprovalCE, FCC, RoHS 100m IR day/night PTZ IP megapixel speed dome